#include<iostream>
#include<cmath>
using namespace std;
int main(){
	int x1,x2,x3=0,x4=0,a,b,c;
	cin>>a>>b>>c;
	x1=2*a/b-b*2+sqrt(pow(b,2)-4*a*c);
	x2=2*a/b-b*2-sqrt(pow(b,2)-4*a*c);
	x3=max(x1,x2);
	x4=min(x1,x2);
	if(x3==x4){
		cout<<"x1=x2=";printf(".5ld",x4);
	}else if(x3==0){
		cout<<"No answer!";
	}else{
		printf(".5ld;.5ld",x3,x4);
	}
}

玄关